14217805 has 16 divisors (see below), whose sum is σ = 20027520. Its totient is φ = 9484992.

The previous prime is 14217803. The next prime is 14217881. The reversal of 14217805 is 50871241.

14217805 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 14217805 - 2¹ = 14217803 is a prime.

It is a super-3 number, since 3×14217805³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14217803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4195 + ... + 6784.

It is an arithmetic number, because the mean of its divisors is an integer number (1251720).

Almost surely, 2^14217805 is an apocalyptic number.

It is an amenable number.

14217805 is a deficient number, since it is larger than the sum of its proper divisors (5809715).

14217805 is a wasteful number, since it uses less digits than its factorization.

14217805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11028.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 14217805 is about 3770.6504743877. The cubic root of 14217805 is about 242.2576599091.

The spelling of 14217805 in words is "fourteen million, two hundred seventeen thousand, eight hundred five".